Our affluence has allowed us to move to a place where we tend to make things pleasurable, as opposed to efficient.

People don't just stop playing Facebook games. They divorce them.

Who cares and who doesn't care about a project, is going to shape the project in a significant way.

LinkedIn's got a little progress bar. It wants you to do things like sign up 10 of your friends. It does that near the end. At the beginning it's like, 'You put in your name. 20 percent progress! How about some other information?' People want to fill in that progress bar. They like to complete a task. They like to check a box.

Usually, the best ideas come from having to fix a really hard problem.

Games are starting to creep into every aspect of our day.

Games have no other purpose than to please.